BR25S320-W

High Reliability Series Serial EEPROMs SPI BUS BR25□□□□family BR25S□□□ Series ●Description BR25S□□□ series is a serial EEPROM of SPI BUS interface method. ●Features 1) High speed clock action up to 20MHz (Max.) 2) Wait function by HOLDB terminal 3) Part or whole of memory arrays settable as read only memory area by program 4) 1.7～5.5V single power source action most suitable for battery use 5) Page write mode useful for initial value write at factory shipment 6) Highly reliable connection by Au pad and Au wire 7) For SPI bus interface (CPOL, CPHA) = (0, 0), (1, 1) 8) Auto erase and auto end function at data rewrite 9) Low current consumption At write action (5V) : 1.5mA (Typ.) At read action (5V) : 1.0mA (Typ.) At standby action (5V) : 0.1μA (Typ.) 10) Address auto increment function at read action 11) Write mistake prevention function Write prohibition at power on Write prohibition by command code (WRDI) Write prohibition by WPB pin Write prohibition block setting by status registers (BP1, BP0) Write mistake prevention function at low voltage 12) SOP8/SOP-J8/SSOP-B8/TSSOP-B8/MSOP8/TSSOP-B8J/VSON008X2030 Package 13) Data at shipment Memory array: FFh, status register WPEN, BP1, BP0 : 0 14) Data kept for 40 years 15) Data rewrite up to 1,000,000 times No.10001EBT08 ●Page Write Page Part Number 32Byte BR25S320-W BR25S640-W 64Byte BR25S128-W BR25S256-W ●BR25S□□□ series Capacity Bit format 32Kbit 64Kbit 128Kbit 256Kbit 4K×8 8K×8 16K×8 32K×8 Power source voltage 1.7V～5.5V 1.7V～5.5V 1.7V～5.5V 1.7V～5.5V SOP8 ● ● ● ● SOP-J8 ● ● ● ● SSOP-B8 TSSOP-B8 MSOP8 ● ● ● ● ● ● ● ● TSSOP-B8J ● ● VSON008 X2030 ● www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved. 1/18 2010.12 - Rev.B BR25S□□□ Series ●Absolute maximum ratings (Ta=25°C) Parameter Symbol Limits Impressed Vcc -0.3～+6.5 voltage 450(SOP8) 450(SOP-J8) Permissible dissipation 300(SSOP-B8) Pd 330(TSSOP-B8) 310(MSOP8) 310(TSSOP-B8J) 300(VSON008X2030) Storage temperature range Operating temperature range Terminal voltage Tstg -65～+125 Technical Note ●Memory cell characteristics (Ta=25°C , Vcc=1.7V～5.5V) Unit V *1 *2 *3 *4 *5 *6 *7 Parameter Number of data rewrite times *1 Data hold years *1 Limits Min. 1,000,000 40 Min. － － Min. － － Unit Time Year mW *1 Not 100% TESTED ●Recommended action conditions Parameter Power source voltage ℃ Input voltage Symbol VCC VIN Limits 1.7～5.5 0～Vcc Unit V ●Input / output capacity (Ta=25°C, frequency=5MHz) Topr － -40～+85 -0.3～Vcc+0.3 ℃ V Parameter Input capacity *1 Output capacity *1 *1 Not 100% TESTED. Symbol Conditions CIN COUT VIN=GND VOUT=GND Min. － － Max. 8 8 Unit pF * When using at Ta=25℃ or higher, 4.5mW(*1, *2), 3.0mW(*3, *7),3.3mW(*4), 3.1mW(*5, *6) to be reduced per 1℃ ●Electrical characteristics (Unless otherwise specified, Ta=-40～+85°C, Vcc=1.7～5.5V) Limits Parameter Symbol Unit Min. Typ. Max. “H” Input Voltage1 “L” Input Voltage1 “L” Output Voltage1 “L” Output Voltage2 “H” Output Voltage1 “H” Output Voltage2 Input Leakage Current Output Leakage Current VIH1 VIL1 VOL1 VOL2 VOH1 VOH2 ILI ILO ICC1 Operating Current Write ICC2 ICC3 ICC4 ICC5 ICC6 Operating Current Read ICC7 ICC8 ICC9 ICC10 Standby Current ISB 0.7xVcc -0.3 0 0 Vcc-0.2 Vcc-0.2 -1 -1 － － － － － － － － － － － － － － － － － － － － － － － － － － － － － － Vcc+0.3 0.3xVcc 0.4 0.2 Vcc Vcc 1 1 0.5 1 1 1.5 2 3 1 1 1.5 2 2 4 8 2 *1 *2 *1 *2 *1 *2 Conditions V V V V V V μA μA mA mA mA mA mA mA mA mA mA mA μA 1.7≦Vcc≦5.5V 1.7≦Vcc≦5.5V IOL=2.1mA, 2.5≦Vcc